Special tools required:

WARNING: This page is about a different car, the 2008 BMW 760Li and 2007 BMW 760Li. However, it is still accessible from the selected car via links, so may be relevant.

11 7 030. See 11 7 030 SOCKET WRENCH SOCKET WAF 22
11 9 150. See 11 9 150 SPECIAL WRENCH

Cylinders 7 to 12.

Necessary preliminary tasks:

Read out DME fault memory.
Remove automatic transmission underbody protection.

WARNING: Scalding hazard!
Only perform these tasks after the exhaust system has cooled down.

Plug connection (1), cylinders 1 to 6.

Plug connection (3), cylinders 7 to 12.

Unlock and detach plug connection (3).

Unclip oxygen control sensor cable.

Installation:

Pay attention to cable routing of Lambda control sensor.

Fig 1: Identifying Oxygen Control Sensor Cable

Courtesy of BMW OF NORTH AMERICA, INC.

Remove oxygen control sensor (4) with special tools 11 7 030 and 11 9 150. See 11 7 030 SOCKET WRENCH SOCKET WAF 22 , 11 9 150 SPECIAL WRENCH

Installation:

When using special tools 11 7 030 and 11 9 150, 47 Nm on torque wrench scale corresponds to an actual tightening torque of 50 Nm. See 11 7 030 SOCKET WRENCH SOCKET WAF 22 , 11 9 150 SPECIAL WRENCH

If an oxygen control sensor is reused, apply a thin and even coat of Never . See z compound (refer to BMW Parts Service) to the thread only.

The part of the oxygen control sensor which projects into the exhaust system branch (sensor ceramic) must not be cleaned or come into contact with lubricant.

Fig 2: Identifying Special Tools (11 7 030 And 11 9 150) With Oxygen Control Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

Check function of DME.